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Study On The Motion Form Of Boat Anchor In Soft Soil

                  Anchor in the soft soil due to the role of wind and waves will move with the ship, this may cause the submarine embedded cable is damaged. Rockfill protection is currently widely used to protect submarine cables, but there is no mature construction code for this kind of protection measures. In order to improve the design parameters of submarine cable Rockfill protection, it is very necessary to study the motion law of anchor in soft soil. Based on the two-dimensional nonlinear finite element analysis of the anchor Claw, the constitutive relation between the trajectory of the ship anchor and its yielding load is established, and a new method for predicting the trajectory of the anchor is proposed based on the research results of the anchor chain in soft soil. Finally, according to the Dutch Deltares Research Institute plan to implement centrifuge test calculation parameters, the test results are simulated.Boat Anchor

                  In the event of a storm, the anchor will move along with the ship in the soft soil, and the anchor in the movement can cause damage to the submarine embedded cable. Once the accident happens, it will cause great damage to the marine environment, and it will also bring extremely expensive maintenance costs.

                  Rockfill protection is currently widely used to protect submarine cables, but there is no relatively mature construction code for this kind of protection measures, for the depth of cable embedment, the type of excavation groove and the number of Rockfill, is still based on experience. In order to improve the design parameters of submarine cable Rockfill protection, it is very necessary to study the motion law of anchor in soft soil. Deltares Research Institute of the Netherlands (formerly Geo-delft Rock and Soil) a centrifuge test with centrifugal acceleration of 100G is proposed to study the motion Law and the ultimate drag force of anchor in soft soil, as part of the theoretical research, the content of this paper is divided into 4 parts:(1) Two-dimensional nonlinear finite element analysis of the anchor Claw, (2) constitutive relation of anchor claw in soft soil, and (3) study of anchor chain;(4) Simulation calculation of Deltares centrifuge test.Boat Anchor


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